kernel/git/stable/linux.git/arch/powerpc/Makefile, branch linux-4.9.y

powerpc: vdso: Make vdso32 installation conditional in vdso_install

2020-01-29T09:24:21+00:00

[ Upstream commit ff6d27823f619892ab96f7461764840e0d786b15 ] The 32-bit vDSO is not needed and not normally built for 64-bit little-endian configurations. However, the vdso_install target still builds and installs it. Add the same config condition as is normally used for the build. Fixes: e0d005916994 ("powerpc/vdso: Disable building the 32-bit VDSO ...") Signed-off-by: Ben Hutchings Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin

powerpc: Fix compiling a BE kernel with a powerpc64le toolchain

2017-12-14T08:28:17+00:00

[ Upstream commit 4dc831aa88132f835cefe876aa0206977c4d7710 ] GCC can compile with either endian, but the default ABI version is set based on the default endianness of the toolchain. Alan Modra says: you need both -mbig and -mabi=elfv1 to make a powerpc64le gcc generate powerpc64 code The opposite is true for powerpc64 when generating -mlittle it requires -mabi=elfv2 to generate v2 ABI, which we were already doing. This change adds ABI annotations together with endianness for all cases, LE and BE. This fixes the case of building a BE kernel with a toolchain that is LE by default. Signed-off-by: Nicholas Piggin Tested-by: Naveen N. Rao Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

arch/powerpc: Add CONFIG_FSL_DPAA to corenetXX_smp_defconfig

2016-09-25T07:39:01+00:00

Enable the drivers on the powerpc arch. Signed-off-by: Roy Pledge Signed-off-by: Claudiu Manoil Signed-off-by: Scott Wood

powerpc/Makefile: Construct the UTS_MACHINE value more concisely

2016-09-13T07:37:06+00:00

Use the standard Kbuild trick of foo-y to make the construction of UTC_MACHINE less verbose. Signed-off-by: Michael Ellerman

powerpc/Makefile: Drop CONFIG_WORD_SIZE for BITS

2016-09-13T07:37:06+00:00

Commit 2578bfae84a7 ("[POWERPC] Create and use CONFIG_WORD_SIZE") added CONFIG_WORD_SIZE, and suggests that other arches were going to do likewise. But that never happened, powerpc is the only architecture which uses it. So switch to using a simple make variable, BITS, like x86, sh, sparc and tile. It is also easier to spell and simpler, avoiding any confusion about whether it's defined due to ordering of make vs kconfig. Signed-off-by: Michael Ellerman

powerpc/Makefile: CROSS32AS is unused, remove it

2016-09-13T07:37:04+00:00

In fact it makes no sense at all to have this defined on little endian builds. Since we disabled the 32-bit VDSO on little endian, we don't build any 32-bit code when building a little endian kernel. Signed-off-by: Michael Ellerman

powerpc/Makefile: Use cflags-y/aflags-y for setting endian options

2016-08-10T13:01:53+00:00

When we introduced the little endian support, we added the endian flags to CC directly using override. I don't know the history of why we did that, I suspect no one does. Although this mostly works, it has one bug, which is that CROSS32CC doesn't get -mbig-endian. That means when the compiler is little endian by default and the user is building big endian, vdso32 is incorrectly compiled as little endian and the kernel fails to build. Instead we can add the endian flags to cflags-y/aflags-y, and then append those to KBUILD_CFLAGS/KBUILD_AFLAGS. This has the advantage of being 1) less ugly, 2) the documented way of adding flags in the arch Makefile and 3) it fixes building vdso32 with a LE toolchain. Signed-off-by: Michael Ellerman

powerpc/sparse: Pass endianness to sparse

2016-07-14T10:44:03+00:00

Explicitly give sparse an endianness in the Makefile, so that it doesn't get confused. Normally we have #ifdef one and #else the other, so it doesn't usually matter, but we have been bitten by it before, and indeed this patch fixes a number of sparse errors. Suggested-by: Arnd Bergmann Signed-off-by: Daniel Axtens Signed-off-by: Michael Ellerman

powerpc: Avoid -maltivec when using clang integrated assembler

2016-07-05T13:58:53+00:00

Check the assembler supports -maltivec by wrapping it with call as-option. Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next

2016-03-14T09:05:14+00:00

Freescale updates from Scott: "Highlights include 8xx optimizations, 32-bit checksum optimizations, 86xx consolidation, e5500/e6500 cpu hotplug, more fman and other dt bits, and minor fixes/cleanup."